Question

He has made a mistake (change passive voice)​

Answer 1

Answer:

A mistake has been made by him.

Explanation:

Answer 2

A mistake has been made by him. -This is the answer.

Explanation:

• The given sentence is in active voice. We have to change it into passive voice.
• When a sentence is changed into passive , the subject becomes passive/ inactive. So the subject/doer of the statement given 'he' becomes 'by him' in passive voice.
• Object of the statement and the action take importance. The passive statement begins with 'a mistake', the active statement's object.
• The tense must be retained. The verb takes its past participle.
• The 'be' verb will precede the past participle according to its tense. So the verb 'has made' becomes 'has been made'.
• Therefore the answer is: A mistake has been made by him.